Content-Type이란?

Http 통신에서 전송되는 데이터의 타입을 명시하기 위해 header에 실리는 정보다. 즉, api 요청 시 request에 실어 보내는 데이터(body)의 타입 정보다.

Content-Type 종류

1) Multipart Related MIME 타입

• Content-Type: Multipart/related <-- 기본형태
• Content-Type: Application/X-FixedRecord

2) XML Media의 타입

• Content-Type: text/xml
• Content-Type: Application/xml
• Content-Type: Application/xml-external-parsed-entity
• Content-Type: Application/xml-dtd
• Content-Type: Application/mathtml+xml
• Content-Type: Application/xslt+xml

3) Application의 타입

• Content-Type: Application/EDI-X12 <-- Defined in RFC 1767
• Content-Type: Application/EDIFACT <-- Defined in RFC 1767
• Content-Type: Application/javascript <-- Defined in RFC 4329
• Content-Type: Application/octet-stream : <-- 디폴트 미디어 타입은 운영체제 종종 실행파일, 다운로드를 의미
• Content-Type: Application/ogg <-- Defined in RFC 3534
• Content-Type: Application/x-shockwave-flash <-- Adobe Flash files
• Content-Type: Application/json <-- JavaScript Object Notation JSON; Defined in RFC 4627
• Content-Type: Application/x-www-form-urlencode <-- HTML Form 형태

4) 오디오 타입

• Content-Type: audio/mpeg <-- MP3 or other MPEG audio
• Content-Type: audio/x-ms-wma <-- Windows Media Audio;
• Content-Type: audio/vnd.rn-realaudio <-- RealAudio; 등등

5) Multipart 타입

• Content-Type: multipart/mixed: MIME E-mail;
• Content-Type: multipart/alternative: MIME E-mail;
• Content-Type: multipart/related: MIME E-mail <-- Defined in RFC 2387 and used by MHTML(HTML mail)
• Content-Type: multipart/formed-data <-- 파일 첨부

6) TEXT 타입

• Content-Type: text/css
• Content-Type: text/html
• Content-Type: text/javascript
• Content-Type: text/plain
• Content-Type: text/xml

Axios http 통신 예제

import axios from "axios";

async function example(bodyData) {
  const params = new URLSearchParams();
  params.append("bodyData", bodyData);
  const config = {
    headers: {
      // headers에 content-type 설정
      "Content-type": "application/x-www-form-urlencoded",	
    },
  };
  const { data } = await axios.post("api/url", params, config);
  return data;
}

참조

https://jw910911.tistory.com/117
https://juyoung-1008.tistory.com/4